Defibtech offers AED Accessories for the Defibtech LifeLine automated external defibrillator (AED). The AED accessories include replacement pads and batteries, training materials and equipment, and event review software and equipment. The Defibtech LifeLine AED adult and infant/child pads have an expiry date of every 2 years. The battery for the Defibtech LifeLine is offered in a 5 year and a 7 year battery.